OTHER INFORMATION: Ways - 0580; Originally a wrecking boat named Submarine No. 7 built and owned by James B. Eads of St. Louis. In 1861 she was converted to a U.S. gunboat. She was plated in front with three inches of iron backed by 30 inches of oak; the rest was plated with 5/8 inches of iron. She mounted 16 guns and was the most powerful weapon on the Mississippi although she was very slow. Her nickname was "Old War Horse". She saw a lot of action including the battle of Memphis on June 6, 1862 where she was used as a flagship. On November 29, 1865 she was sold at Mound City, Illinois to D. Jacobs for $3000. She was then scrapped